Fire-brick.



Patented June 23, 1903.

PATENT OFFICE.

JOHN AYLING, OF TORONTO JUNCTION, CANADA.

FIRE-BRICK.

SPECIFICATION forming part of Letters Patent No. 731,653, dated June 23, 1903. Application filed October 29, 1902. Serial No. 129,205. (No model.)

To all whom it may concern:

Be it known that I, JOHN AYLING, brickmaker, of Toronto Junction, in the county of York, Province of Ontario,'Oanada, have invented a new and useful Improvement in Fire-Bricks, (for which I have obtained a patent in Canada, No. 77,521, dated September 23, 1902,) of which the following is a specification.

My invention consists of a composition for the manufacture of fire-bricks; and it consists of the following ingredients mixed in the following proportions hard-coal ashes,six parts;

shale, three parts fire-clay, one part.

Tothe above ingredients I add water and I place in a mixer and thoroughly agitate until a the matter becomes pugged or ready for f orming or shaping,

Itake the above, form into bricks, an d burn necessary amount of salt JOHN AYLING.

In presence of ANDREW A. ADAMS, W. A. SMITH. 

